问题
选择题
It is _____ he often fails in exams____ makes his parents worried about him.
A．because；that
B．that；that
C．不填；that
D．what；that
答案
答案：B
题目分析：考查主语从句和强调句：首先第二个填that为强调句，It is ...that...中的that 为固定搭配，去掉It is ...that...来看，这是句子为That he often fails in exams makes his parents worried about him.在这一句中That he often fails in exams 为主句，这是个强调的主语从句，选B。
